AMD EPYC 9554 vs AMD Phenom II X4 940
Last updated:
CPU comparison with benchmarks
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| AMD EPYC 9554 | AMD Phenom II X4 940 | |
CPU comparisonAMD EPYC 9554 or AMD Phenom II X4 940 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The AMD EPYC 9554 has 64 cores with 128 threads and clocks with a maximum frequency of 3.75 GHz. Up to 6144 GB of memory is supported in 12 memory channels. The AMD EPYC 9554 was released in Q4/2022. The AMD Phenom II X4 940 has 4 cores with 4 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Phenom II X4 940 was released in Q1/2009. |
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| AMD EPYC (129) | Family | AMD Phenom II (52) |
| AMD EPYC 9004 (21) | CPU group | AMD Phenom II - 800/900 (23) |
| 4 | Generation | 4 |
| Genoa / Genoa-X (Zen 4) | Architecture | Deneb (K10) |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD EPYC 9554 has 64 CPU cores and can calculate 128 threads in parallel. The clock frequency of the AMD EPYC 9554 is 3.10 GHz (3.75 GHz) while the AMD Phenom II X4 940 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD Phenom II X4 940 is at 3.00 GHz. |
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| AMD EPYC 9554 | Characteristic | AMD Phenom II X4 940 |
| 64 | Cores | 4 |
| 128 | Threads | 4 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | No |
| No | Overclocking ? | Yes |
| 3.10 GHz | Frequency | 3.00 GHz |
| 3.75 GHz | Turbo Frequency (1 Core) | -- |
| 3.75 GHz | Turbo Frequency (All Cores) | -- |
Memory & PCIeThe AMD EPYC 9554 can use up to 6144 GB of memory in 12 memory channels. The maximum memory bandwidth is 460.8 GB/s. The AMD Phenom II X4 940 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s. |
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| AMD EPYC 9554 | Characteristic | AMD Phenom II X4 940 |
| DDR5-4800 | Memory | DDR3-1333, DDR2-1066 |
| 6144 GB | Max. Memory | |
| 12 | Memory channels | 2 (Dual Channel) |
| 460.8 GB/s | Max. Bandwidth | 21.3 GB/s |
| Yes | ECC | No |
| 64.00 MB | L2 Cache | -- |
| 256.00 MB | L3 Cache | 6.00 MB |
| 5.0 | PCIe version | -- |
| 128 | PCIe lanes | -- |
| 504.1 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the AMD EPYC 9554 is 360 W, while the AMD Phenom II X4 940 has a TDP of 125 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| AMD EPYC 9554 | Characteristic | AMD Phenom II X4 940 |
| 360 W | TDP (PL1 / PBP) | 125 W |
| -- | TDP (PL2) | -- |
| 400 W | TDP up | -- |
| 320 W | TDP down | -- |
| 100 °C | Tjunction max. | -- |
Technical detailsThe AMD EPYC 9554 is manufactured in 5 nm and has 320.00 MB cache. The AMD Phenom II X4 940 is manufactured in 45 nm and has a 6.00 MB cache. |
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| AMD EPYC 9554 | Characteristic | AMD Phenom II X4 940 |
| 5 nm | Technology | 45 nm |
| Chiplet | Chip design | Unknown |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI | ISA extensions | SSE3, SSE4a |
| SP5 | Socket | AM2+ |
| AMD-V, SVM | Virtualization | AMD-V |
| Yes | AES-NI | No |
| Windows Server 2022, Linux, Windows 11 | Operating systems | Windows 10, Linux |
| Q4/2022 | Release date | Q1/2009 |
| 9087 $ | Release price | -- |
| show more data | show more data | |
64C 128T @ 3.10 GHz (3.75 GHz) buy now on Amazon and save!
4C 4T @ 3.00 GHz buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks
Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD Phenom II X4 940
4C 4T @ 3.00 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD Phenom II X4 940
4C 4T @ 3.00 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD Phenom II X4 940
4C 4T @ 3.00 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD Phenom II X4 940
4C 4T @ 3.00 GHz |
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Cinebench R20 (Single-Core)
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD Phenom II X4 940
4C 4T @ 3.00 GHz |
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Cinebench R20 (Multi-Core)
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD Phenom II X4 940
4C 4T @ 3.00 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD Phenom II X4 940
4C 4T @ 3.00 GHz |
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Cinebench R15 (Single-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD Phenom II X4 940
4C 4T @ 3.00 GHz |
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Cinebench R15 (Multi-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD Phenom II X4 940
4C 4T @ 3.00 GHz |
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Devices using this processor |
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| AMD EPYC 9554 | AMD Phenom II X4 940 |
| Unknown | Unknown |
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